<!DOCTYPE html>
<html>
<head>
<meta charset="UTF-8">
<title>Insert title here</title>
<link rel='stylesheet' href='../css/shadow.css'/>
</head>
<body>
<div class='shadow_class' id='div1'>진한 그림자</div>
<div class='shadow_class' id='div2'>흐린 그림자</div>
</body>
</html>